护圈和护铁与武器的准星和照门相连。在常规射击中,常运用准星和照门进行瞄准,很少用到护圈和护铁。但在进行夜间射击时,由于准星和照门体积较小很难瞄准,这时护圈和护铁就派上了用场。本文即是作者结合多年射击教学实践而探索出的一种方法—— Retaining ring and back iron with the weapon’s sight and according to the door. In conventional shooting, sighting and sighting are often used to target, rarely used guard ring and iron. However, in the night shooting, due to the sight and take the door is small and difficult to aim at the time, then the guardrail and the armor came in handy. This article is a combination of years of practice with the author to explore a method -